skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Sudakov suppression of jets in QCD media

Abstract

Here, we compute modifications to the jet spectrum in the presence of a dense medium. We show that in the large- N c approximation and at leading logarithmic accuracy the jet nuclear modification factor factorizes into a quenching factor associated to the total jet color charge and a Sudakov suppression factor which accounts for the energy loss of jet substructure fluctuations. This factor, called the jet collimator, implements the fact that subjets, that are not resolved by the medium, lose energy coherently as a single color charge, whereas resolved large angle fluctuations suffer more quenching. For comparison, we show that neglecting color coherence results in a stronger suppression of the jet nuclear modification factor.

Authors:
 [1];  [2]
  1. Univ. of Washington, Seattle, WA (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1472207
Alternate Identifier(s):
OSTI ID: 1478498
Report Number(s):
BNL-209197-2018-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
SC0012704; FG02-00ER41132
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; jets; QCD

Citation Formats

Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Sudakov suppression of jets in QCD media. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.051501.
Mehtar-Tani, Yacine, & Tywoniuk, Konrad. Sudakov suppression of jets in QCD media. United States. doi:10.1103/PhysRevD.98.051501.
Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Mon . "Sudakov suppression of jets in QCD media". United States. doi:10.1103/PhysRevD.98.051501.
@article{osti_1472207,
title = {Sudakov suppression of jets in QCD media},
author = {Mehtar-Tani, Yacine and Tywoniuk, Konrad},
abstractNote = {Here, we compute modifications to the jet spectrum in the presence of a dense medium. We show that in the large-Nc approximation and at leading logarithmic accuracy the jet nuclear modification factor factorizes into a quenching factor associated to the total jet color charge and a Sudakov suppression factor which accounts for the energy loss of jet substructure fluctuations. This factor, called the jet collimator, implements the fact that subjets, that are not resolved by the medium, lose energy coherently as a single color charge, whereas resolved large angle fluctuations suffer more quenching. For comparison, we show that neglecting color coherence results in a stronger suppression of the jet nuclear modification factor.},
doi = {10.1103/PhysRevD.98.051501},
journal = {Physical Review D},
number = 5,
volume = 98,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.051501

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share: